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https://bitbucket.org/chromiumembedded/cef
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39aed35644
This change allows the client to directly send and receive DevTools protocol messages (send method calls, and receive method results and events) without requiring a DevTools front-end or remote-debugging session. This change includes additional supporting changes: - Add a new CefRequestHandler::OnDocumentAvailableInMainFrame callback (see issue #1454). - Add a CefParseJSON variant that accepts a UTF8-encoded buffer. - Add a `--devtools-protocol-log-file=<path>` command-line flag for logging protocol messages sent to/from the DevTools front-end while it is displayed. This is useful for understanding existing DevTools protocol usage. - Add a new "libcef_static_unittests" executable target to support light-weight unit tests of libcef_static internals (e.g. without requiring exposure via the CEF API). Files to be unittested are placed in the new "libcef_static_unittested" source_set which is then included by both the existing libcef_static library and the new unittests executable target. - Linux: Remove use_bundled_fontconfig=false, which is no longer required and causes unittest build errors (see issue #2424). This change also adds a cefclient demo for configuring offline mode using the DevTools protocol (fixes issue #245). This is controlled by the "Offline mode" context menu option and the `--offline` command-line switch which will launch cefclient in offline mode. When cefclient is offline all network requests will fail with ERR_INTERNET_DISCONNECTED and navigator.onLine will return false when called from JavaScript in any frame. This mode is per-browser so newly created browser windows will have the default mode. Note that configuring offline mode in this way will not update the Network tab UI ("Throtting" option) in a displayed DevTools front-end instance.
80 lines
2.7 KiB
C++
80 lines
2.7 KiB
C++
// Copyright (c) 2020 The Chromium Embedded Framework Authors. All rights
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// reserved. Use of this source code is governed by a BSD-style license that
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// can be found in the LICENSE file.
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#ifndef CEF_LIBCEF_BROWSER_DEVTOOLS_DEVTOOLS_CONTROLLER_H_
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#define CEF_LIBCEF_BROWSER_DEVTOOLS_DEVTOOLS_CONTROLLER_H_
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#include <memory>
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#include "content/public/browser/devtools_agent_host_client.h"
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#include "base/containers/span.h"
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#include "base/memory/scoped_refptr.h"
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#include "base/memory/weak_ptr.h"
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#include "base/observer_list.h"
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#include "base/values.h"
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namespace content {
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class WebContents;
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}
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class CefDevToolsController : public content::DevToolsAgentHostClient {
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public:
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class Observer : public base::CheckedObserver {
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public:
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// See CefDevToolsMessageObserver documentation.
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virtual bool OnDevToolsMessage(const base::StringPiece& message) = 0;
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virtual void OnDevToolsMethodResult(int message_id,
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bool success,
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const base::StringPiece& result) = 0;
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virtual void OnDevToolsEvent(const base::StringPiece& method,
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const base::StringPiece& params) = 0;
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virtual void OnDevToolsAgentAttached() = 0;
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virtual void OnDevToolsAgentDetached() = 0;
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virtual void OnDevToolsControllerDestroyed() = 0;
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protected:
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~Observer() override {}
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};
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// |inspected_contents| will outlive this object.
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explicit CefDevToolsController(content::WebContents* inspected_contents);
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~CefDevToolsController() override;
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// See CefBrowserHost methods of the same name for documentation.
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bool SendDevToolsMessage(const base::StringPiece& message);
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int ExecuteDevToolsMethod(int message_id,
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const std::string& method,
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const base::DictionaryValue* params);
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// |observer| must outlive this object or be removed.
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void AddObserver(Observer* observer);
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void RemoveObserver(Observer* observer);
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base::WeakPtr<CefDevToolsController> GetWeakPtr() {
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return weak_ptr_factory_.GetWeakPtr();
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}
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private:
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// content::DevToolsAgentHostClient implementation:
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void AgentHostClosed(content::DevToolsAgentHost* agent_host) override;
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void DispatchProtocolMessage(content::DevToolsAgentHost* agent_host,
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base::span<const uint8_t> message) override;
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bool EnsureAgentHost();
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content::WebContents* const inspected_contents_;
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scoped_refptr<content::DevToolsAgentHost> agent_host_;
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int next_message_id_ = 1;
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base::ObserverList<Observer> observers_;
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base::WeakPtrFactory<CefDevToolsController> weak_ptr_factory_;
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DISALLOW_COPY_AND_ASSIGN(CefDevToolsController);
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};
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#endif // CEF_LIBCEF_BROWSER_DEVTOOLS_DEVTOOLS_CONTROLLER_H_
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